CN108723217A - Pipe end clamping device and its clamping means on a kind of electric tube expander - Google Patents

Pipe end clamping device and its clamping means on a kind of electric tube expander Download PDF

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Publication number
CN108723217A
CN108723217A CN201810543394.3A CN201810543394A CN108723217A CN 108723217 A CN108723217 A CN 108723217A CN 201810543394 A CN201810543394 A CN 201810543394A CN 108723217 A CN108723217 A CN 108723217A
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CN
China
Prior art keywords
collet
punch
chuck component
pipe fitting
tube expansion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201810543394.3A
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Chinese (zh)
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CN108723217B (en
Inventor
韩林山
范素香
周甲伟
上官林建
杨杰
谭群燕
胡全义
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North China University of Water Resources and Electric Power
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North China University of Water Resources and Electric Power
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Priority to CN201810543394.3A priority Critical patent/CN108723217B/en
Publication of CN108723217A publication Critical patent/CN108723217A/en
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Publication of CN108723217B publication Critical patent/CN108723217B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003Positioning devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08Tube expanders
    • B21D39/20Tube expanders with mandrels, e.g. expandable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes

Abstract

The present invention relates to pipe end clamping device and its clamping means on a kind of electric tube expander, the device includes sleeve, chuck component, it is flared punch and tube expansion punch, N number of spherical rolling body is installed by collet outer ring and collet inner ring clearance fit in the collet bore of chuck component, chuck component is sleeved at the port of pipe fitting, inner cylinder face diameter sleeve identical with the external cylindrical surface diameter of chuck component is sleeved on the external cylindrical surface of chuck component, the spherical rolling body on chuck component moves on the direction of collet diameter to center under the action of sleeve inner cylinder face extruding force at this time, one week protrusion is formed on the inner cylinder face of chuck component at this time, the outer surface of the protrusion fore-set pipe fitting, flaring punch is moved down on the inner cylinder face upper edge pipe fitting axis direction of pipe fitting until forming the state for clamping pipe fitting with spherical rolling body.The present invention can not only by tube end flares and clamp pipe end ensure tube expansion while, moreover it is possible to ensure that the entire length of pipe fitting when tube expansion will not change.

Description

Pipe end clamping device and its clamping means on a kind of electric tube expander
Technical field
The present invention relates to the clamping device on a kind of electric tube expander, more particularly on a kind of electric tube expander pipe end clamping device and its Clamping means.
Background technology
Electric tube expander is the key equipment of an important component in heat exchanger air conditioner, and principle is:It is swollen using one Bar, in its end face, setting is more than the swollen ball of copper pipe diameter, and under the effect of external force, swollen ball is squeezed toward copper pipe, and copper pipe is swollen, is made With cooling fin be in close contact, avoid generate loosening.
Currently, electric tube expander in the market, in the copper pipe of swollen heat exchanger, copper pipe is improper since positioning clamps, when tube expansion 3 ~ 4% will be reduced naturally after copper pipe swells since swollen ball is more than copper pipe.Therefore, the institute under this production model The heat exchanger produced will often slattern 3 ~ 4% raw material;And high-power hydraulic system is used, waste is a large amount of Electric power resource, in addition, expansion tube process is that first the tube expansion on a station needs then on another station to tube end flares Two stations are wanted, are wasted time.
Invention content
The purpose of the present invention is to solve can be indulged while the metal tube of heat exchanger in the prior art is radially enlarged It is inconsistent to the size shunk and every metal tube is shunk, will result in heat exchanger metal tube is irregular and heat exchanger The deficiency of shortening now provides pipe end clamping device and its clamping means on a kind of electric tube expander, and pipe fitting upper end is clamped and ensures pipe fitting Flaring is realized to the port of pipe fitting while will not axially shrinking.
Technical scheme is as follows:
Pipe end clamping device on a kind of electric tube expander, the device include sleeve, chuck component, flaring punch, tube expansion punch, sleeve peace Loading board, collet mounting plate, flaring punch mounting plate and tube expansion punch mounting plate, it is characterized in that:
The sleeve is a thin-walled cylinder barrel, and chuck component includes collet, collet inner ring, collet outer ring and N number of spherical rolling Kinetoplast, collet are the thin-walled cylinder barrels that there is step surface in a lower end, and the outer diameter of collet is identical as the internal diameter of sleeve, and collet sleeve is mounted in On the inner cylinder face of ferrule barrel, collet lower end outer surface has the step surface of one week uniform depth, collet lower end inner surface also to have The step surface of one week uniform depth, be arranged on step surface it is N number of along the circumferential direction on be uniformly distributed and through the spherical shape of collet Hole, collet inner ring are mounted on the step surface on collet inner surface, and collet outer ring is mounted on the step surface on collet outer surface, Collet inner ring and collet outer ring are equipped with limit hole corresponding with above-mentioned spherical shape hole site, the limit on collet inner ring and collet outer ring The minimum diameter in hole is less than the diameter of spherical rolling body, and the limit hole on collet inner ring and collet outer ring passes through spherical rolling body Clearance fit is mounted in the spherical pore on collet thin-walled, and the diameter of spherical rolling body is more than the wall thickness of collet, and rolling element can In the play in the radial direction of chuck component, flaring punch be a lower end with one week radially on boss thin-walled Cylindrical drum, with the contra bevel received in one week, the outer diameter of flaring punch lower end boss is less than for the lower end of flaring punch lower end boss The internal diameter of chuck component, flaring punch are sleeved in the interior cylindrical cavity of chuck component.
Preferably, the sleeve upper end is fixedly connected with sleeve mounting plate, the collet upper end and collet mounting plate It is fixedly connected, the flaring punch upper end is fixedly connected with flaring punch fixing plate.
Preferably, the internal diameter of the collet inner ring is identical with the internal diameter of collet, the outer diameter and folder of the collet outer ring The outer diameter of head is identical.
Preferably, there is a joint-cutting in the collet outer ring along its axis direction, and two edges are respectively provided in the both sides of joint-cutting Collet radial direction is through collet outer ring, the pin hole of collet and collet inner ring, and pin is by pin hole by collet outer ring, folder Head and collet inner ring three are fixed together.
Preferably, the quantity of the spherical rolling body is identical as the quantity of the spherical pore on the collet.
Preferably, the tube expansion punch is sleeved in the interior cylindrical cavity of flaring punch, the upper end of tube expansion punch and tube expansion Punch connecting plate is fixedly connected.
Preferably, the axis of the sleeve, chuck component, hole-expansion punch and tube expansion punch coincides.
A kind of clamping means using pipe end clamping device on foregoing electric tube expander include the following steps:
1. will wait for the upper pipe end of swollen pipe fitting upward it is fixed in the vertical direction, and make the axis at the straight tube end for waiting for tube expansion part with The axis of chuck component overlaps;
2. chuck component moves down the upper tube end cap by tube expansion part is waited in the interior cylindrical cavity of chuck component, spherical rolling body Position pass through the upper port of pipe fitting completely;
3. flaring punch and tube expansion punch move down simultaneously, flaring punch stops when being moved downward at the upper port of tube expansion part It only moves down, tube expansion punch continues to move down until the punch of tube expansion punch passes through folder completely in the inner cavity of pipe fitting at this time When the lower port of head assembly, the stopping of tube expansion punch is moved down;
4. sleeve move down until sleeve lower port and chuck component lower port in same position, by sleeve stop to Lower movement, at this time under the action of the extruding force in sleeve inner cylinder face, all rolling elements on chuck component are in the straight of chuck component It is moved to the center of chuck component on diameter direction, forming one week protrusion on the inner cylinder face of chuck component withstands the outside cylinder of pipe fitting Face;
5. flaring punch continues to move down under step position 3., under the action of being flared the contra bevel of punch, flaring punching Head imports the inner cylinder face of pipe fitting from the upper port of pipe fitting, is moved downward to and is formed and will be managed with the spherical rolling body on chuck component Part clamp state after stop movement, at this time pipe fitting external cylindrical surface in the inside extruding force of spherical rolling body and inner cylinder face swollen Pipe fitting is clamped under the collective effect of the outside extruding force of contra bevel of pipe punch, because the maximum gauge of flaring punch is more than pipe The internal diameter of part, so flaring punch is a process to pipe fitting expanding when moving down;
6. tube expansion punch, which continues to move down under step position 3., completes entire tube expansion process, due to pipe fitting flared section with There are one fillet surface between non-flared section, the rolling element on chuck component acts on the power on the curved surface in pipe fitting axis direction Upper there are one upward component, you can the entire length of pipe fitting will not change when ensureing tube expansion punch tube expansion.
Beneficial effects of the present invention
Pipe end clamping device and its clamping means on a kind of electric tube expander, the device include sleeve, chuck component, flaring punch and swollen Pipe punch is installed N number of spherical rolling body by collet outer ring and collet inner ring clearance fit in the collet bore of chuck component, will be pressed from both sides Head assembly is sleeved at the port of pipe fitting, and the identical sleeve of the external cylindrical surface diameter of inner cylinder face diameter and chuck component is sleeved on On the external cylindrical surface of chuck component, at this time the spherical rolling body on chuck component under the action of sleeve inner cylinder face extruding force It is moved to center on the direction of collet diameter, forms one week protrusion, protrusion top on the inner cylinder face of chuck component at this time The outer surface of column tube part, diameter are more than the flaring punch of pipe fitting diameter on the inner cylinder face of pipe fitting by pipe fitting expanding, and along pipe It is moved down on part axis direction until forming the state for clamping pipe fitting with spherical rolling body.
The present invention using spherical rolling body as one clamping force, make the clamping device install and dismount it is more convenient, Because the impetus of spherical rolling body is curved surface, smaller to the damage of pipe fitting;It is also during being flared punch and clamping To the flaring process of pipe port, it need not separately set station and carry out tube end flares, the cost-effective and time improves working efficiency; After flaring punch flaring, there are one fillet surface between the flared section of pipe fitting and non-flared section, the spherical shape on chuck component Rolling element acts on the power on the curved surface, and there are one upward component on pipe fitting axis direction, so can ensure tube expansion The entire length of pipe fitting will not change when punch tube expansion, save material, improve product quality.
Description of the drawings
Fig. 1 is pipe end clamping device diagrammatic cross-section on a kind of electric tube expander;
Fig. 2 is the enlarged diagram of A in Fig. 1;
Fig. 3 is the structural schematic diagram of chuck component;
Fig. 4 is the explosive view of chuck component;
Fig. 5 is the structural schematic diagram for being flared punch;
Fig. 6 is the structural schematic diagram of tube expansion punch;
1. tube expansion punches, 2. pipe fittings, 3. cooling fins, 4. sleeves, 5. collets, 6. flaring punches, 7. collet outer rings, 8. rollings in figure Kinetoplast, 9. collet inner rings, 10. sleeve mounting plates, 11. collet mounting plates, 12. flaring punch mounting plates, the installation of 13. tube expansion punches Plate, 14. pins, 15. pin holes, 16. joint-cuttings, 17. contra bevels.
Specific implementation mode
Case study on implementation one:
Referring to Fig. 1-6, pipe end clamping device on a kind of electric tube expander in figure, the device include sleeve, chuck component, flaring punch, Tube expansion punch, sleeve mounting plate, collet mounting plate, flaring punch mounting plate and tube expansion punch mounting plate.
The sleeve is a thin-walled cylinder barrel, and sleeve upper end is fixedly connected with sleeve mounting plate, and chuck component includes Collet, collet inner ring, collet outer ring and N number of spherical rolling body, collet are the thin-walled cylinder barrel that there is step surface in a lower end, collet Upper end is fixedly connected with collet mounting plate, and the outer diameter of collet is identical as the internal diameter of sleeve, and collet sleeve is mounted in the inner circle of ferrule barrel On cylinder, there is a step surface of one week uniform depth in collet lower end outer surface, and collet lower end inner surface also has one week uniform depth Step surface, be arranged on step surface it is N number of along the circumferential direction on be uniformly distributed and through the spherical pore of collet, the installation of collet inner ring On step surface on collet inner surface, collet outer ring is mounted on the step surface on collet outer surface, the internal diameter of collet inner ring Identical with the internal diameter of collet, the outer diameter of collet outer ring is identical with the outer diameter of collet, and collet outer ring has one to cut along its axis direction Seam, after being put into rolling element in the spherical pore on collet, collet outer ring is more easily installed up, and two are respectively provided in the both sides of joint-cutting It is a through collet outer ring, the pin hole of collet and collet inner ring, pin will be in collet outer ring, collet, collet by pin hole Circle three is fixed, and prevents collet outer ring and collet inner ring from relatively rotating, collet inner ring and collet outer ring be equipped with it is upper State the corresponding limit hole in spherical hole site, the minimum diameter of collet inner ring and the limit hole on collet outer ring is less than spherical rolling body Diameter, limitation rolling element in spherical pore and can also in spherical pore play, the limit hole on collet inner ring and collet outer ring Spherical rolling body is mounted on by clearance fit in the spherical pore on collet thin-walled, the diameter of spherical rolling body is more than collet Wall thickness, the quantity of spherical rolling body is identical as the quantity of the spherical pore on the collet, and rolling element can be in chuck component Play in the radial direction, flaring punch are the thin-walled cylinder barrel that a lower end carries one week boss, flaring punch upper end and flaring Punch fixing plate is fixedly connected, and with the contra bevel received in one week, flaring punch lower end is convex for the lower end of flaring punch lower end boss The outer diameter of platform is less than the internal diameter of chuck component, and flaring punch is sleeved in the interior cylindrical cavity of chuck component, and tube expansion punch is sleeved on Be flared in the interior cylindrical cavity of punch, sleeve, chuck component, hole-expansion punch and tube expansion punch axis coincide.
Case study on implementation two:
Referring to Fig. 1-6, in figure on a kind of electric tube expander according to case study on implementation one pipe end clamping device clamping means, including Following steps:
1. will wait for the upper pipe end of swollen pipe fitting upward it is fixed in the vertical direction, and make the axis at the straight tube end for waiting for tube expansion part with The axis of chuck component overlaps;
2. chuck component moves down Shangguan's end cap by tube expansion part is waited in the interior cylindrical cavity of chuck component, spherical rolling body Position pass through the upper port of pipe fitting completely;
3. flaring punch and tube expansion punch move down simultaneously, flaring punch stops when being moved downward at the upper port of tube expansion part It only moves down, tube expansion punch continues to move down until the punch of tube expansion punch passes through folder completely in the inner cavity of pipe fitting at this time When the lower port of head assembly, the stopping of tube expansion punch is moved down;
4. sleeve move down until sleeve lower port and chuck component lower port in same position, by sleeve stop to Lower movement, at this time under the action of the extruding force in sleeve inner cylinder face, all rolling elements on chuck component are in the straight of chuck component It is moved to the center of chuck component on diameter direction, forming one week protrusion on the inner cylinder face of chuck component withstands the outside cylinder of pipe fitting Face;
5. flaring punch continues to move down under step position 3., under the action of being flared the contra bevel of punch, flaring punching Head imports the inner cylinder face of pipe fitting from the upper port of pipe fitting, is moved downward to and is formed and will be managed with the spherical rolling body on chuck component Part clamp state after stop movement, at this time pipe fitting external cylindrical surface in the inside extruding force of spherical rolling body and inner cylinder face swollen Pipe fitting is clamped under the collective effect of the outside extruding force of contra bevel of pipe punch, because the maximum gauge of flaring punch is more than pipe The internal diameter of part, so flaring punch is a process to pipe fitting expanding when moving down;
6. tube expansion punch, which continues to move down under step position 3., completes entire tube expansion process, due to pipe fitting flared section with There are one fillet surface between non-flared section, the rolling element on chuck component acts on the power on the curved surface in pipe fitting axis direction Upper there are one upward component, you can the entire length of pipe fitting will not change when ensureing tube expansion punch tube expansion;
7. after the completion of tube expansion process, tube expansion punch stops after being moved upward to the position of step 3., flaring punch is moved upward to Remove the inner cylinder face of pipe fitting, then sleeve is moved upward to the position by the rolling element on chuck component, chuck component to On be moved to the outer circle column casing face for leaving pipe fitting, last tube expansion punch is moved upward to the interior cylindrical cavity for removing pipe fitting, tube expansion mistake Journey terminates.

Claims (8)

1. pipe end clamping device on a kind of electric tube expander, which includes sleeve, chuck component, flaring punch, tube expansion punch, sleeve Mounting plate, collet mounting plate, flaring punch mounting plate and tube expansion punch mounting plate, it is characterized in that:
The sleeve is a thin-walled cylinder barrel, and chuck component includes collet, collet inner ring, collet outer ring and N number of spherical rolling Kinetoplast, collet are the thin-walled cylinder barrels that there is step surface in a lower end, and the outer diameter of collet is identical as the internal diameter of sleeve, and collet sleeve is mounted in On the inner cylinder face of ferrule barrel, collet lower end outer surface has the step surface of one week uniform depth, collet lower end inner surface also to have The step surface of one week uniform depth, be arranged on step surface it is N number of along the circumferential direction on be uniformly distributed and through the spherical shape of collet Hole, collet inner ring are mounted on the step surface on collet inner surface, and collet outer ring is mounted on the step surface on collet outer surface, Collet inner ring and collet outer ring are equipped with limit hole corresponding with above-mentioned spherical shape hole site, the limit on collet inner ring and collet outer ring The minimum diameter in hole is less than the diameter of spherical rolling body, and the limit hole on collet inner ring and collet outer ring passes through spherical rolling body Clearance fit is mounted in the spherical pore on collet thin-walled, and the diameter of spherical rolling body is more than the wall thickness of collet, and rolling element can In the play in the radial direction of chuck component, flaring punch be a lower end with one week radially on boss thin-walled Cylindrical drum, with the contra bevel received in one week, the outer diameter of flaring punch lower end boss is less than for the lower end of flaring punch lower end boss The internal diameter of chuck component, flaring punch are sleeved in the interior cylindrical cavity of chuck component.
2. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The sleeve upper end and set Cylinder mounting plate is fixedly connected, and the collet upper end is fixedly connected with collet mounting plate, the flaring punch upper end and flaring Punch fixing plate is fixedly connected.
3. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The collet inner ring it is interior Diameter is identical with the internal diameter of collet, and the outer diameter of the collet outer ring is identical with the outer diameter of collet.
4. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The collet outer ring is along it Axis direction has a joint-cutting, the both sides of joint-cutting be respectively provided with two along collet radial direction through collet outer ring, collet and Collet outer ring, collet and collet inner ring three are fixed together by the pin hole of collet inner ring, pin by pin hole.
5. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The spherical rolling body Quantity is identical as the quantity of the spherical pore on the collet.
6. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The tube expansion punch suit In the interior cylindrical cavity of flaring punch, the upper end of tube expansion punch is fixedly connected with tube expansion punch connecting plate.
7. pipe end clamping device on a kind of electric tube expander according to claim 1, it is characterized in that:The sleeve, collet group The axis of part, hole-expansion punch and tube expansion punch coincides.
8. a kind of clamping means using pipe end clamping device on electric tube expander described in claim 1 include the following steps:
1. will wait for the upper pipe end of swollen pipe fitting upward it is fixed in the vertical direction, and make the axis at the straight tube end for waiting for tube expansion part with The axis of chuck component overlaps;
2. chuck component moves down the upper tube end cap by tube expansion part is waited in the interior cylindrical cavity of chuck component, spherical rolling body Position pass through the upper port of pipe fitting completely;
3. flaring punch and tube expansion punch move down simultaneously, flaring punch stops when being moved downward at the upper port of tube expansion part It only moves down, tube expansion punch continues to move down until the punch of tube expansion punch passes through folder completely in the inner cavity of pipe fitting at this time When the lower port of head assembly, the stopping of tube expansion punch is moved down;
4. sleeve move down until sleeve lower port and chuck component lower port in same position, by sleeve stop to Lower movement, at this time under the action of the extruding force in sleeve inner cylinder face, all rolling elements on chuck component are in the straight of chuck component It is moved to the center of chuck component on diameter direction, forming one week protrusion on the inner cylinder face of chuck component withstands the outside cylinder of pipe fitting Face;
5. flaring punch continues to move down under step position 3., under the action of being flared the contra bevel of punch, flaring punching Head imports the inner cylinder face of pipe fitting from the upper port of pipe fitting, is moved downward to and is formed and will be managed with the spherical rolling body on chuck component Part clamp state after stop movement, at this time pipe fitting external cylindrical surface in the inside extruding force of spherical rolling body and inner cylinder face swollen Pipe fitting is clamped under the collective effect of the outside extruding force of contra bevel of pipe punch, because the maximum gauge of flaring punch is more than pipe The internal diameter of part, so flaring punch is a process to pipe fitting expanding when moving down;
6. tube expansion punch, which continues to move down under step position 3., completes entire tube expansion process, due to pipe fitting flared section with There are one fillet surface between non-flared section, the rolling element on chuck component acts on the power on the curved surface in pipe fitting axis direction Upper there are one upward component, you can the entire length of pipe fitting will not change when ensureing tube expansion punch tube expansion.
CN201810543394.3A 2018-05-31 2018-05-31 Pipe end clamping device on pipe expander and clamping method thereof Active CN108723217B (en)

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Application Number Priority Date Filing Date Title
CN201810543394.3A CN108723217B (en) 2018-05-31 2018-05-31 Pipe end clamping device on pipe expander and clamping method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810543394.3A CN108723217B (en) 2018-05-31 2018-05-31 Pipe end clamping device on pipe expander and clamping method thereof

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CN108723217B CN108723217B (en) 2021-01-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113908718A (en) * 2021-10-26 2022-01-11 四川众鑫盛农牧机械有限公司 Quality guaranteeing device with cleaning function
CN114160688A (en) * 2021-11-29 2022-03-11 珠海格力智能装备有限公司 Pipe expanding device and pipe expanding equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85106544A (en) * 1985-08-30 1987-03-18 基瑟林格和阿尔贝特 The toolroom machine that connects heat exchanger tube and tube sheet
CN86102960A (en) * 1985-04-29 1987-04-29 赫克制造公司 Anchor bolt with expansion lock and pin stop
CN1035451A (en) * 1988-02-07 1989-09-13 埃米特放射技术股份有限公司 Combined transmission shaft and its
JPH0490130U (en) * 1990-12-14 1992-08-06
JPH06142801A (en) * 1992-11-06 1994-05-24 Kyoshin Kogyo Kk Continuous supplying device for heat exchanger in pipe expanding device
CN1111460A (en) * 1993-07-09 1995-11-08 法国第一工业辅助公司 Device for mounting an element on a tube with a fluid channel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86102960A (en) * 1985-04-29 1987-04-29 赫克制造公司 Anchor bolt with expansion lock and pin stop
CN85106544A (en) * 1985-08-30 1987-03-18 基瑟林格和阿尔贝特 The toolroom machine that connects heat exchanger tube and tube sheet
CN1035451A (en) * 1988-02-07 1989-09-13 埃米特放射技术股份有限公司 Combined transmission shaft and its
JPH0490130U (en) * 1990-12-14 1992-08-06
JPH06142801A (en) * 1992-11-06 1994-05-24 Kyoshin Kogyo Kk Continuous supplying device for heat exchanger in pipe expanding device
CN1111460A (en) * 1993-07-09 1995-11-08 法国第一工业辅助公司 Device for mounting an element on a tube with a fluid channel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113908718A (en) * 2021-10-26 2022-01-11 四川众鑫盛农牧机械有限公司 Quality guaranteeing device with cleaning function
CN114160688A (en) * 2021-11-29 2022-03-11 珠海格力智能装备有限公司 Pipe expanding device and pipe expanding equipment
CN114160688B (en) * 2021-11-29 2023-12-26 珠海格力智能装备有限公司 Pipe expanding equipment and pipe expanding device and method

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Application publication date: 20181102

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Denomination of invention: A clamping device and clamping method for the upper pipe end of an expanding pipe machine

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